I'm an experienced programmer looking for a good reference and tutorial for developing for Palm OS in either C or C++? What are some good (up to date) books, reference manuals, and sites that would set me in a direction to start developing on the Palm Treo and Centro?
There are no up to date books on PalmOS, because the OS hasn't changed in years. But Palm OS Programming was good for its time. Maybe you want to develop for the new Pre, then you might want Palm webOS instead.